Car Audio Head Unit for BMW X5: Magnesium Alloy
This car audio head unit for the BMW X5 is specified around magnesium alloy, 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 warranty claims traced back to a single lot, or inconsistent hardness between lots. Both are specification problems, and both are preventable.

Specification
| Product | Car Audio Head Unit |
|---|---|
| Vehicle application | BMW X5 |
| Material / finish | Magnesium Alloy |
| Typical use | Long-Distance Touring |
| MOQ | 3,000 pieces per specification |
| Sampling | 7 working days, 5 days per revision |
| Bulk lead time | 15-55 days after approval |
| Compliance | RoHS |
| Packing | 50 pieces per inner box, 200 per carton |
Material options
- ABS Plastic — specified where the part sits close to a heat source
- Carbon Fibre Composite — preferred when weight matters more than rigidity
- Bronze — used when the finish has to hold a coating
- EPDM Rubber — the cost-effective default for volume programmes
- Polypropylene — chosen where wear resistance comes first

Processes available
- die casting
- heat treatment
- powder coating
- rubber vulcanisation
- ultrasonic cleaning
- anodising
Fitment notes
Keep the old part until the new one is on the bench. Comparing them side by side settles questions a photograph never will.
Where it is used
The specification above is the one most often ordered for long-distance touring. Related applications include off-road trails, rental fleets, ride-hailing fleets, wet weather riding, night riding.
Quality and packing
- In-line inspection with AQL 4.0 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
What is the minimum order quantity?
The standard MOQ is 3000 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.
Can the specification be held on file?
Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the RoHS-compliant build instead of a fresh interpretation.
How long does sampling take?
Samples leave the factory in 7 working days, and each revision round adds about 5 days once you have seen the first piece.
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.
Send the part number, the annual volume and the target market, and we will come back with a specification and a sampling plan.







