I think its about 15cm x 10cm in length and width and about 2 cm thickness. Only guesstimate though. No drills need to be done at all. Once you hook the plug and play harness from boomslang to you ECU, put back the carpet to cover the harness, pull the harness through the back of the glove box. There is a gap smaller than a fist size. Then plug the other end of harness to your emanage. Easy easy! Everything goes in neat. You cant even see any part of the harness uncovered. Then I lock my glove box so no one will play with it lol.
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