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Discussion Starter · #1 ·
Hello Gents,

I have been putting this off for ages but finally decided I'm sick of the terrible sound system in my Audi A5.
Some facts about my car and current mods that regard the audio system

1. I have an aftermarket head unit called RSNAV that is basically a full android system NOT CARPLAY and it can interface with most USB devices such as a USB DAC etc
2. I have replaced the rear subwoofer in the shelf with an Infinite Baffle setup and it's been working great for the past 3 years. INFO HERE on the system and I will add a picture here of its final state as it has been tidied up with better cable etc. The boot has been sealed airtight and sound deadened with dodo matt as in my head it would sandwich between the shelf and metal nicer than thinner materials.

My plan is to replace the current amp if possible with 1 amp that can drive the Infinite Baffle setup and the other speakers that will be replaced.
I will be going directly from the RSNAV into the AMP fully bypassing the Audi radio system and stock amp. If there's a way to keep the signal digital to the amp then id do that

I wish to keep the car looking OEM. I'm not looking to go insane or extreme with the setup I just want a nice audio experience. Anything is better than the stock system

Below is what Audi says is installed in my car but unfortunately, it doesn't give the sizes of the speaker units. I also don't have speaker number 23 on the rear shelf there are slots for them however, And obviously, the sub has been taken care of. so I count
7 tweeters
4 mids
Automotive parking light Motor vehicle Automotive lighting Tire Automotive tire

Attached is a rough pdf of what I'm planning to replace.

I basically just need what size speakers I can get away with fitting.
I have access to a 3D Printer and I do CAD for work so I'm not scared to make some baffles if that would improve the system

Below are pictures of Infinite Baffle setup
Hood Automotive tire Trunk Motor vehicle Automotive lighting
Trunk Motor vehicle Electrical wiring Gas Automotive exterior
 

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Discussion Starter · #3 ·
Hey! yea I have crawled the site and there are a lot of other Audi builds but for the A5/S5 of my generation there's hardly anything.
I noticed a lot of posts starting to discuss upgrading this car but nothing bore fruit
My car 100% has tweeters in the front doors. see below. but it also has 3 tweeters in the dash two corners and one centre
and against the schematic that I posted there's only a sub in the rear shelf, not 2 tweeters but there were cutouts for them (that have been sealed but can easily be unsealed and added)


Hood Automotive lighting Vehicle Automotive tire Automotive design
Vehicle Hood Window Automotive lighting Car
Automotive lighting Car Hood Motor vehicle Automotive tire
Car Motor vehicle White Light Automotive design
 

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Discussion Starter · #5 ·
I was going to do like for like just with better equipment and amp. but can you even get mids that are tweeter size?

Also was wondering about how many amps I'm currently pulling. My car has a 140A alternator, and a huge battery 80AH I have never seen it drop below 60% and it lives most of its life 80-90% according to the car's computer.

My subwoofer is a 700w and tbh I have to run it at the lowest settings otherwise it would blow my window out the back of the car. the amp's 1000w. I'm not sure how to calculate it I know 1000w divided by the batt voltage would be 76A. but I probably only ever run it at 20% power.... might be worth monitoring amps and checking or am I being paranoid lol I could probably downsize the amp and free some energy up?
 

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Discussion Starter · #7 ·
You can fit a midrange in there maybe a 2.5. I wouldn't put 4 tweeters up front with you. Just the 2 at the sail panel. As far as battery. If you get a AGM for under the hood it will help. I have a 130 amp alternator with around 6k but I have an AGM in the front and 2 lithium batteries in the back. Component amps should not take alot of amperage to run. So I think k you'll be fine.
Might sound like a huge noob but whats a AGM?
 
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