Help needed with audio set up!

[hazkirby]

Hi,

I need to know where is the best place to hook up my remote wire... I have the stock head unit.. I know its a blue/white wire on the back of the HU on an aftermarket model, but I have no idea about the stock head unit?

I have also removed both rear speakers, as I plan to extended the signal to my amp in the boot (high level)... can I simply attach/solder new wire to the negative and positive on the back of the actual speaker? And run these to my boot? Also can I hook my remote wire up to a current speaker as well, or do I have to go back to the HU?

Thanks very much!