jvc new spkrs

[frankyjoet]

have a 73 am/fm 8 trk cassette stereo. the plugs are 11 pin. i am trying to hookup 3 spkrs, 1 in dash is original. the other 2 are jvc spkrs. there are all different wire colors in the plugs. some wires have power tested w the trouble light. there are 3 plugs, whte blk blue. the blk plug has 3 wires. the yellow is 12v power the blk is chass grnd the biege i am not sure. i tried diff temp hookups and was able to test the spkrs. i need to know the permanent hookup. thanks for help.