How do you check if a 2004 Volvo S40 has integrated climate/radio/phone controls?

Volvo S40  2004  year was a transition year for S4 stereos. Some stereos use older type of technology, and the others transitioned to the newer.

If you have Volvo S40 2004, and your stereo is "waterfall style", similar to the one below, GROM will not work:

If you have the other (different type) of stereo, where the model of the stereo starts with HU-***, such as the one below, GROM will work:

Compatible models include all from the list here:

If you are in doubt on the compatibility of your vehicle with specific model of GROM, please contact our tech support team at or chat with us live 8am-5pm Monday through Friday at

Drive happy!

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Origami is the Japanese word for paper folding. ORI means to fold and KAMI means paper and involves the creation of paper forms usually entirely by folding.

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