The rear lights are easy to get to. All you need to do is remove the liner in the trunk to access the wires.
The wires that come with the turn mirror signals from Mapisa won't be long enough to reach the rear though, you'll need to extend it. The turn signals from Mapisa can also act as DRLs which you would need to wire to your own switch or to the DRLs of the headlights and they also have a puddle light which you can wire to the dome lights or where ever you'd like.