So I'm replacing some 6x9s in a 1992 Bonneville SSEi, but the previous ones had 2 sets of amplified inputs running to them each, I'm guessing there's a stock crossover somewhere (but possibly it's integrated into the stock amp).

So of course these new Pioneer 6x9s only have one input, and I'm sure their own internal crossovers...

What's the best solution to this problem?

Thanks guys.

 

ummm, it seems your saying that your stock speakers are bi-amplified, or have dual voice coils? and why would they crossover 6x9`s. i know some stock set ups are strange and this situation fits the bill.

the only things that pops into my head is to try one set of wires at a time and see what happens.

 

you could go with bi-amped 6x9's, if you can return your pioneers. Jbl power series are bi-ampable, but you will have to exclude their outboard cross overs. I would ensure that your system is bi-amped before doing this though. Another option, though it may void your warranty is to cut the tweeter leads in the 6x9 and attach them to the tweeter leads from the amp, and do t same for the mids. I've done this before with good results off an aftermarket amp, with your factory amp, you should know what you're doing before you try it as the tweeter leads may not be able to handle a lower impedance load.
Just a few ideas that may work for you.