Car Audio Head Unit for BMW 3 Series: Silicone
This car audio head unit for the BMW 3 Series is specified around silicone, 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 lead time that slipped twice before bulk started, or premature wear on the first batch. Both are specification problems, and both are preventable.
Specification
| Product | Car Audio Head Unit |
|---|---|
| Vehicle application | BMW 3 Series |
| Material / finish | Silicone |
| Typical use | Rural Transport |
| MOQ | 3,000 pieces per specification |
| Sampling | 14 working days, 3 days per revision |
| Bulk lead time | 15-40 days after approval |
| Compliance | ECE R90 |
| Packing | 100 pieces per inner box, 200 per carton |
Material options
- Chromed Steel — chosen where wear resistance comes first
- Kevlar Composite — specified where the part sits close to a heat source
- Nylon 66 — preferred when weight matters more than rigidity
- Neoprene — the cost-effective default for volume programmes
- Carbon Fibre Composite — used when the finish has to hold a coating
Processes available
- CNC machining
- electroplating
- sintering
- heat treatment
- rubber vulcanisation
- assembly line testing
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 rural transport. Related applications include ride-hailing fleets, roadside assistance, long-distance touring, weekend riding, adventure travel.
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
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.
Can you match an existing sample?
Send a sample and we will reverse-engineer the specification, then produce a counter sample for approval before any bulk starts.
Do you handle mixed containers?
Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 3000 pieces per line.
What testing is included?
Standard lots ship with dimensional and hardness reports. ECE R90 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.
