CB6 fuse keeps blowing

[muzila]

There must be a short to earth somewhere in the light or arial circut.

Use a multi meter or a contunuity tester and check all the circuts for a short. Then trace the wires untill you find the short and repair.

A wiring diagram would help you to trace wires.

[Captcol]

I would suggest checking the door looms, cracking of insulation might be earthing out on the door frame

[4x4fun]

Most probably a dodgy stereo connection