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Trying to create my own car head unit.. Sorta. Answered

So i enjoy electronics, so i thought of an idea that would really benefit my life. I enjoy listening to music in the car. Like really enjoy it. Currently i have the original head unit that came with the ford focus mk1. Its terrible, and the speakers distort at loud volumes. Plus there is no way currently for me to listen to my own music apart from a CD. Which come on.. no one uses anymore.

So here's my idea that im finding difficult to bring to light. I was hoping i could create some sort of botch head unit. But i want to create this using components that are not end products. So no i do not want a £100+ amp that does this for me without the DIY. It should be a lot cheaper to do this DIY.

So my idea was 1 amplifier circuit board, which is difficult to find to power 4, 4 Ohm speakers. So my idea was to have 4 separate amplifiers for each speaker. I can't find a single channel amplifier to power a 4 Ohm speaker however. The signal the amplifiers would receive would be through an auxiliary cable or bluetooth reciever.

Any ideas to point me in the right direction would be awesome. If there's a loophole in my idea then please let me know. Still a lot to learn, but that's what were here for right.

Thanks in advance.

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Yonatan24

2 months ago

How about building something like a stereo Bluetooth speaker, but putting one speaker at each side of the car, instead of a boombox enclosure?

You can get an amplifier for about $10 on eBay, see the on DIY Perks built on Youtube a while back...

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BrandonC211Yonatan24

Reply 2 months ago

That's the idea I'm attempting to follow. But trying to find an amplifier that can power 4, 25w 4Ohm speakers, is either pricey, or not possible.

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Yonatan24BrandonC211

Reply 2 months ago

Is the impedance the issue?

Could you... Use two amplifiers?!

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BrandonC211Yonatan24

Reply 2 months ago

Yes I could, I guess. I was just curious to if splitting the auxillary signal between two amplifiers would affect the signal. Plus I'm still unsure how many watts I would need to power two 25w speakers. It depends how much RMS wattage the amplifiers put out. I'd rather not buy two amplifiers and find out they can't push the volume I need.