Originally Posted by bjmsam

Come on, folks. The Subscribe to this Thread option under Thread Tools works just fine on this and every other BBS I've used over the past 20 years.


Back on topic, the following video shows how to update this HU from 4.2.2 to 4.4.4 using this firmware update.

Originally Posted by bjmsam

The USB Host Check app reports the following:



I did not attempt to enable it because my device isn't rooted and I don't need this capability. If you send the seller a note I'm sure you will receive a prompt response.

Originally Posted by bjmsam

The enhancements are not particularly relevant to me, so I will likely wait for 5.0, but at least one other forum member has already performed the update, so perhaps he will chime in with an answer. I still think you should contact the vendor...

Originally Posted by cschroed

I purchased one of these units along with the PAC RP5-GM11 interface and am planning to install it on my 2010 C6. Perhaps you could confirm wiring to the PAC interface. I'm assuming all wiring is as per the PAC instructions except:
1. Red HU ACC wire spliced to red PAC ACC wire and PAC blue/white amplifier wire so that amplifier is enabled whenever power is on.
2. 12 terminal GM connector. Cut yellow and green/white wires. On connector end, yellow PAC wire to HU KEY1 and green/white PAC wire to HU GND wire. Other ends of the PAC wires going to the PAC module taped up and not used.

A few other questions:
1. Since the PAC SWC function is not used, does it matter what the PAC rotary switch is set to?
2. Did you require the chime module or do chime sounds function normally through the car speakers?
3. What steps did you have to go through to pair the OBDLink MX Bluetooth?

Originally Posted by CaseyJones

With your unit, can you record directly from the CD player to the SD card to store music or do you have to update the SD card from a PC?

Originally Posted by 383

Could I set up a "back up camera" to record forward facing while Im driving on track(assuming I do it in forward gears ) or is it hard wired for reverse only?

Originally Posted by cschroed

I just installed one of these head units on my 2010 C6 (non Bose). It replaced a Kenwood that had been on the car for about a year. The Kenwood worked great, but being able to download and use Android apps and WIFI seemed attractive.

Installation as outlined by bjmsam was straightforward. The RP5-GM11 interface works OK and the steering wheel buttons function correctly with the modified hookup he used.

There are serious problems with the FM radio. It's picking up alternator whine. This only occurs on FM (maybe also AM, but who listens to AM). It does not occur in any other sound modes, i.e. playing MP3 files, CDs, or nav voice. It also stops playing immediately if you turn on the windshield wipers. Yeah it's bizarre! The sound dies, but it you change stations, it plays the new station for a few seconds and then dies again. Just like the alternator whine, signal strength has no effect, strong local stations a few miles away are affected just the same as fringe stations. My guess is that they used some really cheap AM/FM radio submodule that is affected by noise on the 12 volt power. It's not HD radio. And the sensitivity is not nearly as good as the Kenwood.

Anyone have any ideas? Any similar issues with other HUs?

The WIFI range is also very limited. It picks up my home WIFI when the car is parked in the garage or WIFI at Starbucks when the car is parked right in front of the store. Other devices with WIFI such as a Samsung smartphone or Android Nexus 7 tablet have a much wider range inside the car under the same conditions.

A final observation on video. I have a front camera (to keep an expensive carbon fiber splitter from turning into splinters on curbstones). The video quality was so-so with the Kenwood. I did some experiments and found that the camera itself was not the problem. The Kenwood was installed by a "pro" who used the cheap extension cable that came with the camera and just coiled up the extra length of about 5-6 feet (too lazy to trim it to length and solder on a new plug). Replacing the video cable with some good quality RG-59 made a world of difference. The video is now much sharper.

Originally Posted by shopdog

The 2006 and 2007 C6 has the XM antenna(s) in the outside rearview mirrors (2005 had a wart on the roof). The two dual diversity FM antenna elements are in the rear fascia, as is the single voltage probe AM antenna.

All of these antennas are active antennas. The XM antennas have LNB block downconverters built in, the FM diversity module has preamps and switching built in, and the active AM antenna has a FET source follower. The modules containing the active electronics for the FM and AM antennas are accessible by removing the rear interior trim panel. If power is lost to a module, or a module is defective, you'll have very poor or no reception.

Poor XM reception in rural areas is to be expected if the antennas don't have a clear view of the southern sky. Hills, buildings, or even heavy vegetation, can block the signal. In most urban areas, XM has terrestrial repeaters to fill in for signal loss due to urban clutter. Sometimes these repeaters are out of service. It isn't uncommon to suddenly find you can't receive a signal in areas which worked before, then in a few days the signal is back. That's simply because the repeater for that area was down, and was then repaired.

Dual diversity virtually eliminates multipath flutter on FM signals. If you get lots of flutter on weak signals, suspect one of the FM antennas is broken. If all signals are weak, suspect that the diversity module has failed.

AM reception in a plastic car is problematic. The wavelengths of AM broadcast signals are so long that there are only two sorts of practical antennas, the ferrite loaded loop, or the voltage probe. Since loop antennas are directional, they aren't suitable for a car, so voltage probe it is. The voltage probe antenna works by sensing the potential difference of the EM wave between ground and a point located above ground. Normally, the metal car body is used as the RF ground (its capacitance to true Earth supplies the RF ground connection). But the Corvette doesn't have a metal body, so the frame is used. The frame isn't nearly as large a capacitor plate as a metal body, so while it works, it doesn't work exceedingly well. A bad frame ground connection to the AM module will result in very poor AM reception.

Most likely you have a bad ground connection to the AM module. Probably a failure to bite through the paint where the wire attaches to the frame, or possibly a cross threaded screw that didn't tighten down on the wire enough to make good electrical contact.