> For the complete documentation index, see [llms.txt](https://wiki.retropilot.org/index/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wiki.retropilot.org/index/introduction-wip/my-car-is-old/steering.md). # Steering Depending on what sort of steering system your car already has will dictate where you'll go, for example if you have a Volkswagen from 2006 onwards it's likely you can [replace your steering rack](/index/vehicles/volkswagen-pq25-platform-retrofits.md) with one that supports Lane Keep Assist, the same with Toyota but substantially - easier just requiring a module swap. Vehicles without a fairly generic upgrade path are where things get interesting. The most direct route would be to cut into your steering column and directly weld a Toyota column mounted power steering module, this will then allow you to have a Panda/[Ocelot](/index/hardware/ocelot.md) send the required message to the column and achieve control. If you already have a hydraulic power steering rack, most people will just "loop" the hydraulic lines and delete the pump, this could potentially cause some issues down the line but no failures have been reported as of yet. If you wanted to do it "right" you'd retrofit a manual steering rack. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://wiki.retropilot.org/index/introduction-wip/my-car-is-old/steering.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.