I had the aftermarket head unit installed the other day, and the sound with the bose stock setup is great, but I don't know what the installer did wrong, but when I turn on the key, the unit doesn't come on for at least two minutes.
He had the adapter kit, and claims that it is a straight through plug and play, with no cutting of wires.,
I told him that on this forum I have read that an aftermarket unit has to be wired into something other than just plugging the connectors together.
I am not sure just what gets wired where, but I think it has something to do with finding a source for the wire that is used to power up the unit.
He said it was something about being tied into some sort of remote, which of course, I have no idea what the hell he is talking about.
The rest seems to work as it should, the antenna goes up when the unit powers up, and it stays on until I open the door, once the key has been removed.
Also the unit doesn't sit far enough in the dash, and he said he would have to design something that can bring the unit in about an inch or so more than what it is.
This dude came recommended to me, but I really don't have much faith in him.
It is going back Tuesday so he can fix it right.
Can anyone tell me more about the wiring for an aftermarket unit?
I am sure I read somewhere that a hot lead has to go to a fuse or something like that.

Bob.

 

from the link below:

When the bose head unit is removed from the wire harness the accessories power lead is disconnected by the pcm. The acc wire is what 'tells' your headunit to turn on so you'll have to tap into some other source for this. The easiest place to tap this lead from is fuse number 22 under the passenger floor board.

https://www.corvetteforum.com/forums...audio-faq.html

It's been so long since i put in my HU but i think there is a metal bracket in the area of where the radio goes that needs to be cut out, or maybe that was on another car i owned...

 

I've got what is probably the same adapter (Axxess XSVI2004), and there is no extra power connection required. It normally comes on in ~10 seconds, very occasionally it will take closer to 30 seconds. But it's never taken longer than it takes me to close the garage door and back out of the driveway.
And yes, most aftermarket heads with CD players need that bracket trimmed or (possibly) just bent back out of the way.

 

I have a Pioneer and the start time is quite long, For some reason it takes a while for it to boot up, I have gotten use to it so no biggie, Gives me time to buckle up and warm up the car.

 

Same here - I have Kenwood 890HD with backup camera and it takes 10 to 20 seconds to fire up. The camera will come on before the stereo of NAV system.