Looking 4 a bit of advice on running a power cable for my amp which I will put in the boot. I found it quite easy on my corsa and puma, but looking at the clio it does not look as easy!! do I have to drill a hole, seal it then try and feed it down behind the glove box then down the passanger side underneath the trim ? I hate drilling holes so id rather not. Plus it looks a bit crammed under there and I might end up drilling into something else !! What have others done ?