Fuse Box Problem

i recently tried to install an after market radio in my c32 laurel, however the wires got mixed up and there is no power to the whole centre of the dash(ie ac, deck).......wen i checked the fuse box...the whole accesory panel is not gettin power and 1 of the relays above is reading 3.6V while all the others reading 12V..........wat can be the cause and how can it be fixed?

Thanks

Hard to say. You may have to get a manual with a wiring diagram and trace it out.

thats the ting since this vehicle is so old i cant locate a service manual.....but thx 4 d reply

Is the key in the accesory position ? Are all fuses fine ?

all the fuses are fine......wen its in the accesory position it gets voltage..........but the relay only takes in 3V............wat can this be?