so i have done a bit more digging in the garage and now have a better idea of what i have. as below:
For up front:
Impulse cm525 5.25" component speakers. 75W rms each at 4ohmhttp://www.bassjunkies.com/car-audio-da ... ulse-cm525
Infinity 9603i 6x9's (but ignore these as not to upset mr.brown). I know they are not the best idea, but seems nuts to replace them with 6x4s when i already own them. can't i just tune them down a bit with the amp? if i didn't already have them i wouldn't bother.http://www.sonicelectronix.com/item_261 ... akers.html
Rockford fosgate 12" Punch sub P312D2 - 100-500W rms - 2ohm stablehttp://www.crutchfield.com/S-UHunNhaKDV ... 312D2.html
I have a JVC headunit with seperate RCA outputs for front, back and sub and i have run all 3 rca cablesinside so they are there. I have also run speaker cable back to the front from the boot to run the front from a amp.
I have also found 2 amps.
a pioneer gm-x334 4ch - 30W rms x4 (@4 ohm) or 70W rms x2 (@4 ohm)http://www.pioneerelectronics.com/PUSA/ ... rs/GM-X334
XSA-720 4ch - 4x90W rms (@2 ohm i pressume) so probably 4x70W @ 4 ohm or somethinghttp://www.mmacoustics.gr/shop/componen ... 3c02dd.jpg
so if i use the amps i have (despite looking ugly and being old) then i think i would use the pioneer bridged (2 x 70W rms) to run the front speakers (75W rms each). Then use the XS amp as a 3 channel. 1ch per 6x9 at 90W rms and the third bridged channel to run the sub @ 180W. I presume the pioneer should make better sound.
or buy this:http://www.ebay.co.uk/itm/PIONEER-GM-D8 ... XQUmFSoL5c
which is slightly overpowered at 100W rms x ch to run front and rear speakers. and this to run the subhttp://www.ebay.co.uk/itm/Pioneer-GM-D8 ... xy3zNSoL5B
at 500W rms its at the max of the sub.
Problem is that will set me back around £250 which is a fair bit more than free for stuff i have in the garage.
I have no idea why i want to make the scirocco stereo so fancy, but most of it is already there and i own it already, so its just the amps i need to sort out really.