I want a constant 12V-15A connection, where to get it from?

So I bought some stuff I'm probably never going to use to put in the van and I want to be able to connect it to a constant 12V source. This will also give me a constant 12V source for my radio, so it'll keep everything in memory etc. The standard radio/cig's connection is switched.

Where would you get it from? Behind the fusebox? I want it to be close to the radio, so getting it straight from the battery would be a little shite because of the distance of new wire that I'm going to need to get over there.

There is a heavy gauge permement live cable to the ECU in the passenger footwell

HighlyJetted wrote:There is a heavy gauge permement live cable to the ECU in the passenger footwell

Ah, perhaps it is necessary to tell you all I have one without ECU...