I have bought a Dension Fm ice link so that I can play my Ipod through the car speakers, Its supposed to be straight forward to wiring in, but not to me !!, it has 3 wires Black for ground, red for constant +12v, purple for switched +12v, I have to scotch lock them in but to what wires ?? Seems theres a lot of them and colours in the back of my CD30 in my 2007 Zafira, I know it sounds obvious but there are more than one of these colours.
Please help !!