How to upgrade the Roewe i5 from two-channel to four-channel audio?
4 Answers
The method to upgrade the Roewe i5 from two-channel to four-channel audio is: You need to reposition the wiring behind the car audio bridge. Taking the 2021 Roewe i5 1.5L Manual Platinum Edition as an example: The manufacturer of this car is SAIC Motor, classified as a compact car with a naturally aspirated engine. The car's dimensions are 4607mm in length, 1818mm in width, and 1489mm in height, with a wheelbase of 2680mm. It is a 4-door, 5-seater sedan with a 5-speed manual transmission and a top speed of 185 km/h. The 2021 Roewe i5 1.5L Manual Platinum Edition features ventilated disc front brakes, disc rear brakes, and a handbrake parking brake system.
Last year, I also upgraded my Roewe i5 to a four-channel audio system, and the sound quality immediately became much fuller, like having a mini concert in the car. The specific steps were: first, install two additional speakers in the rear doors or behind the seats, as the original car only had two speakers in the front doors—a two-channel system with only stereo input and output. You need to buy speakers compatible with the original car system, such as those with matching power, and then check if the head unit can support four-channel output. For my own car, I used a small amplifier that supports high-level input to drive the rear speakers. When wiring, pay attention to the connections of the power and signal wires—don’t cut the original wires directly; using plug-and-play connectors is the safest. I bought a set of tools and spent some time figuring it out, working on it all afternoon before finally getting it done. The sound quality improved, with richer bass details, but the modification cost about 800 RMB. You also need to consider the wiring layout to avoid affecting the door seals, otherwise rainwater could seep in and cause big trouble. I highly recommend this small upgrade for music-loving car owners—spending a little money can bring the joy of surround sound.
From the perspective of an auto audio shop, upgrading the Roewe i5 to a four-channel system isn't actually difficult, but it does require some technical details. The first step is adding rear speakers—you can choose locations like the rear door panels or the sides of the trunk. You'll need to calculate the power output of the original head unit; if it's insufficient, you'll have to add an amplifier or switch to a higher-power head unit. Wiring is a critical point: use professional tools to strip wires and secure terminals, ensuring good grounding of signal wires to prevent short circuits. I also recommend checking the vehicle's wiring for pre-installed interfaces, as some models may come with rear speaker wiring for easier installation. After the upgrade, the soundstage will be more balanced, but be careful not to crank the volume too high to avoid blowing the speakers. The budget is around 1000 yuan, including speakers and installation accessories. It's best to have it done by a professional shop—DIY attempts with incomplete tools can lead to mistakes. Safety first, after all.
As an average car owner, I recently upgraded my Roewe i5 to a four-speaker system on a budget, spending less than 500 yuan. The simple method involves purchasing two mid-to-low range rear speakers (second-hand ones online work too), then removing the rear door trim panels to install them in fixed positions. For wiring, use the included plug-and-play harness to connect to the original head unit's output ports—an external amplifier isn't necessary as the head unit's power suffices. The process is a bit labor-intensive but DIY-friendly, requiring only a screwdriver and wire strippers. Post-upgrade, the sound quality is decent but not professional, with mediocre bass performance. Saving money is part of the fun, but don’t expect high-end audio quality. Just ensure the wiring harness is neatly secured to avoid interfering with the brake cables.
