Car Audio Head Unit for Audi A4: Carbon Fibre Composite
This car audio head unit for the Audi A4 is specified around carbon fibre composite, which decides how it behaves in service far more than the part name does. We build to a written specification — base material, dimensions, finish and packing — and hold that specification on file so every reorder reproduces the approved piece.
The usual reason a programme changes supplier is not unit price. It is premature wear on the first batch, or a specification nobody had written down. Both are specification problems, and both are preventable.

Specification
| Product | Car Audio Head Unit |
|---|---|
| Vehicle application | Audi A4 |
| Material / finish | Carbon Fibre Composite |
| Typical use | Passenger Transport |
| MOQ | 500 pieces per specification |
| Sampling | 14 working days, 3 days per revision |
| Bulk lead time | 15-30 days after approval |
| Compliance | REACH |
| Packing | 20 pieces per inner box, 500 per carton |
Material options
- High Density Foam — the cost-effective default for volume programmes
- Brass — the cost-effective default for volume programmes
- Polypropylene — chosen where wear resistance comes first
- Neoprene — the cost-effective default for volume programmes
- Silicone — used when the finish has to hold a coating

Processes available
- cold forging
- assembly line testing
- rubber vulcanisation
- surface grinding
- ultrasonic cleaning
- die casting
Fitment notes
Confirm the fitment against the VIN or the frame number before ordering; two model years often share a name and not a part.
Where it is used
The specification above is the one most often ordered for passenger transport. Related applications include motocross, mining sites, night riding, food delivery, track days.
Quality and packing
- In-line inspection with AQL 1.5 sampling on every lot.
- Dimensional report issued against the approved drawing.
- Carton marking and barcode to your specification.
- Golden sample retained at the factory as the reorder reference.
Questions buyers ask
Do you handle mixed containers?
Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 500 pieces per line.
How long does sampling take?
Samples leave the factory in 14 working days, and each revision round adds about 3 days once you have seen the first piece.
How is packing specified?
Individual packing, inner box quantity and carton marking are confirmed at quotation stage so the cartons arrive ready for your warehouse.
What testing is included?
Standard lots ship with dimensional and hardness reports. REACH documentation is issued with the shipment when your market requires it.
Send the part number, the annual volume and the target market, and we will come back with a specification and a sampling plan.







