Customer Guide

# Customer Guide

Consolidates customer-facing content already produced: `` (, `consumerFaq` bucket per SKU), `` , and `` FAQ sections . Adds explicit Buying/Choosing/Upgrade Guide framing on top of that real content — no new specs invented.

## Buying Guide

Compare real specs (never price, never a 'best' ranking) via ``. Category landing pages with real Benefits/Technology content: ``, ``, ``, ``, ``.

## Choosing Guide

Match your existing head unit's output type (`input_type` field per SKU) and your car's DSP/channel requirement to a SKU's spec sheet. **This project has no verified vehicle-to-product recommendation for any of the 49 vehicle trims it covers** — customers should not be told 'this DSP is made for your car'; only that its specs are compatible with a stated requirement they confirm themselves or via a dealer.

## Upgrade Guide

PENDING VERIFICATION — no verified upgrade-path data (`compatible_product_ids`) exists for 49 of 52 SKUs. The 3 Accessories SKUs (FRC-02, FRC-03, OTG-LINE) do reference which DSP products they pair with, but with some unresolved product codes flagged for review (see ``).

## Common Questions

See `` (52 SKUs × 20 Q&A, Consumer/Installation/Dealer/Warranty buckets) and `` (real manual-sourced FAQ for FP-8A/FP-12A).

## Installation Expectations

Real expectations only for FP-8A, FP-12A, FX-4 (see ``, this pass). For all other 49 SKUs: PENDING VERIFICATION — set customer expectations conservatively and defer to a certified installer.

## Warranty Expectations

PENDING VERIFICATION for all 52 SKUs — `` confirms `WarrantyPolicy.durationMonths` is nullable by design and no real (non-sample) policy is confirmed to exist in this project. Never tell a customer a specific warranty length; direct them to official warranty registration (`/bao-hanh/dang-ky`) once published.