noob ’87 crown victoria, head unit

I'm attempting to install a new clarion head unit in my '87 Crown Vic Country Squire. I am replacing the factory digital cassette w/external amp & 6 speakers.I have a 4 channel floating ground adapter connected as per the schematic/color codes. I get the hu display, but no sound output.I scanned the schematics, but they are pdf's & I can't post them.I did find this..... https://www.the12volt.com/installbay/forum_posts.asp?tid=56694&KW=crown+vicI didn't connect the bl/wh wire as I thought that was for an aftermarket amp, could this be the solution?I don't want to start indescriminately connecting things and make smoke LOLThanks in advance

Anybody?

if i am not mistaken that year car already is set up for floating you need to recheck your wiring,you can use a testlight in that car to check for power and then use a 9 volt battery to check for your speakers

scrtcell wrote: if i am not mistaken that year car already is set up for floating you need to recheck your wiring,you can use a testlight in that car to check for power and then use a 9 volt battery to check for your speakers

The stock amp appears to be floating however, the adapter harness from the HU has both + and - wires..... Use a 9V batt?

i am an idiot wrote: ...

Thank you, I downloaded this already, It appears to be for the 4 speaker sedan, I have a wagon w/premium sound (6 speakers & external amp)