BMW Sirius Receiver Installation Guide
This installation guide is intended to supplement the BMW Installation Instructions to help you with the installation of the BMW Sirius Receiver for X5 (E53) with Navigation. I opted for the Terk SIR3 Low-Profile Magnetic Mount antenna and mounted it in the spoiler. As a result, this guide will not cover the installation of the BMW Sirius Satellite Antenna and you should follow the instructions supplied with the BMW Sirius Satellite Antenna Kit if you decide to go that route. I found no signal loss or weak reception with the antenna being in the spoiler and would strongly recommend if you want to be stealth and do not like the obtrusive shape of the BMW Sirius antenna on your roof.
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