philipa_240sx wrote:Leo2005, you may have just unlocked a mystery here. Can you post a photo of the front of your headunit. Also provide the model number PYxxxx (somewhere on the front of the HU).
If you are correct, then a whole pile of options have just opened up for the stock headunit!
Now I wonder why on ebay people say about harness for aftermarket like this one will not work with bose system but metraonline says it is the same kit for both systems?philipa_240sx wrote:Nope, it won't work. Here's why:
The BOSE system uses an external amplifier located in the cargo area, the base model head unit does not have this. You cannot run the BOSE unit by itself without the amp.
There is a lot more going on than it seems... I studied the FSM awhile back when a similar question was brought up. Here is what I found:Leo2005 wrote: Other than that 4 speakers should be handled by bose system without amp. It's just my guess.
This is typical of Bose car audio systems. They always have external amps and for some reason, they are never near the HU.philipa_240sx wrote:
There is a lot more going on than it seems... I studied the FSM awhile back when a similar question was brought up. Here is what I found:
There is no direct connection from the BOSE head unit to the speakers. The head unit sends 4 channel (balanced) line level output to the amp. The amp actually has 7 individual channels ... one for each speaker. There is also an equalization/crossover circuit for each channel.
Without the amp, there is no way the BOSE head unit itself can drive the speakers.
It just confusing me. How the unit sends 4 leveled signals? I'm just telling you from my experience with JL speakers. JL came with tweeters and crossovers. I decided to try to connect speakers directly without crossover and tweeters and they still worked BUT...the quality of sound wasn't that good and speakers were not loud but they still worked. Also if bose unit sends 4 signals that's exactly my thought so it should be enough for 4 speakers. I can't really believe what you said until somebody try it or unless bose unit connected the same wires in different way by using the same type of connection which I doubt because metra said it's a same harness for aftermarket unit. Now if you replace the bose unit with aftermarket one and new unit will send 4 signals in a different way comparing to bose but you connect them to the same amplifier and it is still working because amp is doing the job when aftermarket unit can not handle more than 4 speakers. At least one person on this forum did that with bose.philipa_240sx wrote:There is no direct connection from the BOSE head unit to the speakers. The head unit sends 4 channel (balanced) line level output to the amp. The amp actually has 7 individual channels ... one for each speaker. There is also an equalization/crossover circuit for each channel.
Even though the connector is compatible, the signals are not. The BOSE headunit only outputs a low voltage 'line level' signal... at best less than 1W of power. This is not even enough to power a set of headphones... let alone full size speakers!Leo2005 wrote:It just confusing me. How the unit sends 4 leveled signals?
Yes, but this mid-line stereo is only available on Canadian models. Rogue's sold in the USA never got this system.mrirvine wrote:what about the stock unit from the SL premium package...I believe it is an upgrade over the base unit. I have a non-Bose but it has the 6 CD changer
philipa_240sx wrote:This is up for debate now that this fellow tried it and it couldn't make it work:
He never stated what the issue was. Perhaps reply to his thread and ask.