# Mapper > *Address:* [*0x8083F96cF51727BE905057a837DAafBE0B91920f*](https://polygonscan.com/address/0x8083F96cF51727BE905057a837DAafBE0B91920f) Due to the DIMO system architecture, we constantly strive to avoid cross-module calls and minimize codependency, typically simply accessing each other's storage. But a third module, [`Mapper`](/protocol/identity-protocol/auxiliary-contracts/mapper.md), is used to create the connection between the `Vehicle` and the `AftermarketDevice`. Its sole responsibility is to keep track of any connections between modules that might exist and that wouldn't make sense if they were to reside in a particular module. --- # Agent Instructions: 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: ``` GET https://docs.dimo.org/protocol/identity-protocol/auxiliary-contracts/mapper.md?ask= ``` The question should be specific, self-contained, and written in natural language. 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.