Hello Smartie,
I used to have radio 9 in my car. I upgraded to Pioneer F90bt a couple of month ago. I just receive my speakers Polk DB6501 today (2 woofer, 2 tweeter, and 2 crossover). I installed everything, according to Cubefx and Evilution instruction. Everything on the driver side work perfectly, the passenger side seem kind of weak (bass is very weak as well as tweeter). What could be the problem? I checked the wires and everything seem to be correct (orange+, orange-brown -)


