Problems with new sound system

[Ben]

I wired up the new sound system today, its all from Jake's old car with the exception of the rear speakers. It doesn't work as I hoped it would though, and I could really do with some ideas to get it working right, as I'm not an electrical person.

The system is made up using -

Sony HU
Vibe slick A4 amplifier

Front - Vibe k series components and alpine tweeters wired using vibe k series crossovers

Rear - Alpine coaxial 2-way SXE-1725S


Below are symptoms with it wired in 2 different ways.

With fronts in channels 1 and 2, and rears in channels 3 and 4

Front speaker and tweeter on channel 1 work and sound good.

Front speaker and tweeter on channel 2 don't work at all.

Both rears work but are incredibly quiet and bassy. If you turn it up enough to hear from the front its just a bassy rattle, no tune.


With rears in channels 1 and 2, and fronts in channels 3 and 4

Both front speakers work, but neither tweeters do. Both speakers are quiet and bassy like the rears were before.

Rear from channel 1 works and sounds good.

Rear from channel 2 does not work.



Pretty sure everything used to work in Jakes car, and I've checked all three fuses in the amp, they are fine.