I am thinking of putting a "good" stereo system in my C-Max. Has anybody run a power cable from the battery into the boot? If so do you have to drill the firewall or is there a gromit already provided?
Also I noticed in the front doors, the speaker cut out seems to be 5x7 - has anyone fitted 5x7's?

Also I noticed in the front doors, the speaker cut out seems to be 5x7 - has anyone fitted 5x7's?