[foxtrot3]

Hi. Been a long time since I worked on a KC laser (same front half as your wagon). If you go for the under seat sub you can get a powered sub to fit there, If you need more doof doof go for a real sub in a box and a seperate amp. A good head unit will power the 4 inch speakers OK but if you run them from an amp you can use the low pass/cut/high pass filter to cut out some of the bass from them that will only cause distortion on small speakers. Should have wiring for front speakers on head unit and accessories power feed but no constant power (get that from the clock wiring). Rear speaker wiring will go to a plug under drivers seat, if it has rear speakers there will be a small amp there. When cutting the hole for the head unit you need to trim a little bit off the clock mounting bracket so that the mounting sleeve sits against the clock mounting screw and then work back to the choke knob/cable. After you have the cutout the right size refit the facia and file it out to the same size as the new larger hole you have made behind it. Cheers MD