Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Integrated Audio Module (IAM) (2008): Design: Antennas
Integrated Audio Module (IAM) is connected to an antenna system for AM and FM. This consists of two FM-antennas (FM1 and FM2) and an antenna for AM.
For C30 and C70, FM1 is also used as AM-antenna.
Antennas are connected to one or two antenna boosters depending on vehicle model.
Integrated Audio Module (IAM) has two channels, one for FM1 and AM as well as one for FM2.
Both channels are connected to the integrated audio module (IAM) via a coaxial cable.
Connection for the FM2-antenna (sub-antenna) is used for voltage feed of the antenna booster.
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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