Another Stereo Question
Thread Starter
Instructor
Joined: Mar 2019
Posts: 108
Likes: 30
From: Rancho Cucamonga, Ca
Another Stereo Question
Looking at replacing my head unit. I have seen two of the interface things to make the new head unit work with
the Bose speakers. My question is. Is one better than the other? Which one gives me the most control and I won't
lose features? Any guidance is appreciated. Will get to the speakers after Christmas(I'll hint for speakers).
the Bose speakers. My question is. Is one better than the other? Which one gives me the most control and I won't
lose features? Any guidance is appreciated. Will get to the speakers after Christmas(I'll hint for speakers).
Melting Slicks
Joined: Jul 2004
Posts: 3,294
Likes: 482
From: Brea CA
Actually I would use the PAC interface. It does not have the retained power function which has caused issues in some cars. Just undid a bad Best Buy install that used the Axxess interface that was causing a battery drain issue.
Gary
Gary
Melting Slicks
Joined: Jan 2009
Posts: 3,275
Likes: 739
From: Miami FL
Looking at replacing my head unit. I have seen two of the interface things to make the new head unit work with the Bose speakers. My question is. Is one better than the other? Which one gives me the most control and I won't lose features? Any guidance is appreciated. Will get to the speakers after Christmas (I'll hint for speakers).
Since the interfaces with the Serial Data Bus, in addition to preserving the Retained Accessory Power (RAP) feature, it does not need an external "Accessory" switched power connection.
Because the doesn't interface with the Serial Data Bus, it doesn't preserve RAP and requires the extra switched connection mentioned above. The headunit's OEM harness lacks this connection, but it can be easily brought from an unused harness (except '04) in the passenger's footwell that has 3 wires (yellow: switched via Fuse 11, orange: always hot via Fuse 7 and black: ground).
The Retained Accessory Power (RAP) Feature allows the radio to continue playing for approximately 10 min or until a door is opened, whichever happens first, after the ignition switch is turned off.
If you don't want to lose features (RAP), the Axxess is the one to use.
Last edited by GCG; Jun 17, 2020 at 09:33 PM.
Thread Starter
Instructor
Joined: Mar 2019
Posts: 108
Likes: 30
From: Rancho Cucamonga, Ca
That's whatt I was looking for. Great info and very helpful to me. Much appreciated. Now to buy and attempt the install. Haven't installed a car stereo in probably 16 years.. this should be fun.
Last edited by larney; Jun 17, 2020 at 10:38 PM.
Le Mans Master
Joined: May 2000
Posts: 5,266
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From: Syracuse NY
Cruise-In II Veteran
1. VSS from PCM to new radio.
2. Supplying 5VDC to the Coupe Radio Signal On wire at C1 (pin 6 / pink).
Then the new mic for calls, GPS antenna location and how could we ignore a backup camera?
3. Backup Light signal (12VDC) from relay 38 under hood in fuse center or from a backup light when energized.
