A little help please,

I've bought a replacement all singing all dancing Alpine sat-nav DAB head unit to replace the Premium Alpine system my XJR came with, iPod connectivity and no navigation were a step back from my SAAB.

I've managed to remove the old unit, and put in the new one, which comes on/turns off with the ignition. DAB aerial and GPS receiver have been routed under the dash and to the driver's side, it's UK spec right hand drive, A-pillar to avoid the heated screen elements.

Now the main issue,

where to find the cables/connector TO the speakers and the wire which triggers the electric aerial?

I've removed the Alpine amplifier and CD changer from the boot, in the future I'll run pre-amp to the rear and install a new 5 channel amp (front/rear/left/right and sub) and, hopefully, find the cables to the speakers that the old amp used.

Would this be the same place to run the head unit's speaker connections to?

The is mention of a connector under the passenger rear heel board where the speakers are (also?) connected, but this could be for the non-premium system, where there are speaker connections on the white plug at the head unit.

At the moment the system looks great, but sound is not so good....

 

A year on,

all sorted and fitted. Had to clip the connector from the speakers to the amp off and rewire it to my new ALPINE 5ch amp which is connected to the rear of the head unit with phono cables.

Split the front speakers with a crossover box to send correct signals to the door speaker and pillar tweeter.

Rears caused no problems and wired the sub out to the parcel sub.

Trimmed the standard XJ8 fascia down to fit the top of the screen and glued a bit of an old sofa to cover the exposed ribs.

 

Glad you got it sorted, the model specific section might have been a better place to ask last year, the audio section doesn't get a lot of traffic.

 

I doubled down and posted in both;

It does appear the AUDIO section is less trafficked, as you suggested.