Think I'll be doing this tomorrow too... so I can post a pic. Mine was bastardised with an undertray & lights too which I'm taking off for standard stuff.
The wiring in general on the SP1 is shite, a complete after thought, an appalling harness bound together with insulation tape WTF when the plumbing is so brilliant!. Mine is currently stripped down and been restored to original spec. Do not think i will be buying another harness, one shitty one is enough. Soldering iron, solder, cable and heat shrink sheathing, all available off the shelf at halfords. The alarm is coming off too. More bollox.
Errr, on closer inspection a lot of the insulation tape was put on when the alarm was spliced in, What an unholy feckin mess mine is, a breakdown waiting to happen. May have to buy another harness I take back my slur of Honda electricals