At a risk of invoking the wrath of everyone here, in my defence I have spent most of the afternoon researching this issue, but some of the information I've figured out doesn't quite add up... so... here's hoping...
I have a 2007 A4 B7 with standard double DIN Concert stereo fitted which I want to replace with an aftermarket double DIN Sony unit. I have worked out that the cabling is not as straightforward as I'd hoped and I've figured that I need some way of connecting the RCA outputs of the Sony to the quadlock connector in order to feed line out to the rear amps... However this is where I'm a little confused.
As it stands, I have a regular quadlock to ISO adapter cable. Connecting this up does power up the unit, but doesn't output the audio correctly - as I would expect now that I know about the amp setup. However I'm confused as to what cable I actually do need, because most threads about this suggest that the half-amped setup only requires line to be fed to the rears - BUT, when I connect the stereo up with what I currently have, I don't get any sound from the front door speakers either - only the dashboard tweeters make any sound. So if I were to buy the half amped cable, this only has two RCA plugs which I would figure would only feed the rears and I'd still end up with no front doors...? But the only cables I can find with four RCA plugs claim to be for the fully amped Bose system, which I do not have.
Given the cable I've bought doesn't have any connector for the quadlock feed to the amp (the 2x6 pin green connector) I don't actually see how that could work with any unit, so I guess I'd have to ditch that and buy a whole new cable. But which one..??
Sorry if I've missed something blindingly obvious, but like I say I've been hunting through forums all afternoon and have started going round in circles, so figured it best to consult the experts rather than reinvent the wheel!
I have a 2007 A4 B7 with standard double DIN Concert stereo fitted which I want to replace with an aftermarket double DIN Sony unit. I have worked out that the cabling is not as straightforward as I'd hoped and I've figured that I need some way of connecting the RCA outputs of the Sony to the quadlock connector in order to feed line out to the rear amps... However this is where I'm a little confused.
As it stands, I have a regular quadlock to ISO adapter cable. Connecting this up does power up the unit, but doesn't output the audio correctly - as I would expect now that I know about the amp setup. However I'm confused as to what cable I actually do need, because most threads about this suggest that the half-amped setup only requires line to be fed to the rears - BUT, when I connect the stereo up with what I currently have, I don't get any sound from the front door speakers either - only the dashboard tweeters make any sound. So if I were to buy the half amped cable, this only has two RCA plugs which I would figure would only feed the rears and I'd still end up with no front doors...? But the only cables I can find with four RCA plugs claim to be for the fully amped Bose system, which I do not have.
Given the cable I've bought doesn't have any connector for the quadlock feed to the amp (the 2x6 pin green connector) I don't actually see how that could work with any unit, so I guess I'd have to ditch that and buy a whole new cable. But which one..??
Sorry if I've missed something blindingly obvious, but like I say I've been hunting through forums all afternoon and have started going round in circles, so figured it best to consult the experts rather than reinvent the wheel!
